Viruses and viral diseases
The virus is an infectious agent that does not have a cellular structure, and is capable of reproducing only within cells of living organisms. For this they are referred to…

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The atmosphere of the building
The Earth's atmosphere has a number of layers that differ in their various properties: temperature, pressure, height, composition, etc. Troposphere The area of ​​the atmosphere extending from the surface of…

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Wolves are dangerous predators
Wolves are a kind of dangerous predatory mammals belonging to the dog family. Due to their habits, appearance, strength and cleverness, they are very famous animals. By the way, dogs…

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Plains of our planet

Plains are areas of the earth’s surface, with a slope of no more than 5 °, and oscillations of heights of no more than 200 meters. This means that the plains do not necessarily have to be even areas of land, as many people think. They can have both flat relief and hilly. And they can be located not only on land, but also on the ocean floor (deep-water plains), on the shelf (shelf), and at the foot of the continents (sloping). Continue reading

Artificial reservoirs of our planet

An artificial reservoir is a pool of water formed by a human being, for the purpose of its conservation, accumulation and further use. In other words, this place created by man is the place where water is collected, and where it is stored for a long time.

Reservoirs

The reservoir is an artificial reservoir designed to store water and use it in the national economy. Very often they are created in river valleys with the help of water-repellent structures, in which case these reservoirs are called river. But they can also be lizards. Continue reading

World ocean and its properties
The ocean covers about 70% of the surface of our planet. Thus, it is an aquatic membrane, stretched almost all over the surface of the Earth. The oceans are continuous,…

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The structure of the mountains and their classification
Mountains are uneven parts of the land, rising steeply over the adjoining areas of 500 meters or more. They can have different shapes, drawings, size. Because of what they are…

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